75274140 has 48 divisors (see below), whose sum is σ = 218040480. Its totient is φ = 19380480.

The previous prime is 75274139. The next prime is 75274141. The reversal of 75274140 is 4147257.

It is an interprime number because it is at equal distance from previous prime (75274139) and next prime (75274141).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 75274098 and 75274107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75274141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19891 + ... + 23370.

It is an arithmetic number, because the mean of its divisors is an integer number (4542510).

Almost surely, 2^75274140 is an apocalyptic number.

It is an amenable number.

75274140 is an abundant number, since it is smaller than the sum of its proper divisors (142766340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75274140 is a wasteful number, since it uses less digits than its factorization.

75274140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43302 (or 43300 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 75274140 is about 8676.0670813451. The cubic root of 75274140 is about 422.2295270615.

The spelling of 75274140 in words is "seventy-five million, two hundred seventy-four thousand, one hundred forty".